Instead of using I in a essay paper what word do you use?
You can use the word "demanding" as a synonym for "challenging."
Will, when, why, it, can
or
It only looks like a letter X. In fact it is a cross.
mixture
I have a stomach ache.
Myself
are
There are different adjectives and verbs that can be used instead of the word criss cross. You might use the word intersect, overlap and also network. This would mostly apply to lines or roads. But you can also use the connotation move back and forth through and over which is basically the same thing.
no "It" is not used instead of he and she...
used to be